<template>
  <div class="login_container">
    <div class="login_box">
      <div class="logo_box">
        <img src="../assets/logo.png" alt="" />
      </div>
      <!-- 登录表单 -->
      <el-form
        ref="loginFormRef"
        :model="loginForm"
        label-width="0px"
        :rules="loginFormRules"
        class="login_from"
      >
        <!-- 用户名登录 -->
        <el-form-item prop="username">
          <el-input
            v-model="loginForm.username"
            prefix-icon="iconfont icon-user"
          ></el-input>
        </el-form-item>
        <!-- 密码登录 -->
        <el-form-item prop="password">
          <el-input
            v-model="loginForm.password"
            prefix-icon="iconfont icon-3702mima"
            type="password"
          ></el-input>
        </el-form-item>
        <el-form-item class="button">
          <el-button type="primary" @click="login">登录</el-button>
          <el-button type="info" @click="resetLoginForm">重置</el-button>
        </el-form-item>
      </el-form>
    </div>
  </div>
</template>
<script>
export default {
  data() {
    return {
      // 登录表单对象
      loginForm: {
        username: 'admin',
        password: '123456'
      },
      // 验证规则对象
      loginFormRules: {
        username: [
          { required: true, message: '请输入登录账号', trigger: 'blur' },
          {
            min: 3,
            max: 11,
            message: '长度在 3 到 11 个字符',
            trigger: 'blur'
          }
        ],
        password: [
          { required: true, message: '请输入登录密码', trigger: 'blur' },
          {
            min: 6,
            max: 16,
            message: '长度在 6 到 16 个字符',
            trigger: 'blur'
          }
        ]
      }
    }
  },
  methods: {
    resetLoginForm() {
      this.$refs.loginFormRef.resetFields()
    },
    login() {
      this.$refs.loginFormRef.validate(async (valid) => {
        if (!valid) return
        const { data: res } = await this.$http.post('login', this.loginForm)
        if (res.meta.status !== 200) return this.$message.error('登录失败')
        this.$message.success('登录成功')
        // 保存token值并跳转到home页面

        window.sessionStorage.setItem('token', res.data.token)
        this.$router.push('/home')
      })
    }
  }
}
</script>
<style lang="less" scoped>
.login_container {
  height: 100%;
  background-color: #2b4b6b;
  .login_box {
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    height: 300px;
    width: 450px;
    background-color: white;
    border-radius: 10px;
    .logo_box {
      position: absolute;
      left: 50%;
      transform: translate(-50%, -50%);
      width: 130px;
      height: 130px;
      padding: 10px;
      border: 1px solid #ccc;
      border-radius: 50%;
      box-shadow: 0 0 8px #ccc;
      background-color: white;
      img {
        height: 100%;

        border-radius: 50%;
        background-color: #ccc;
      }
    }
  }
}
.login_from {
  position: absolute;
  bottom: 0;
  width: 100%;
  padding: 0 20px;
  box-sizing: border-box;
}
.button {
  display: flex;
  justify-content: flex-end;
}
</style>
